Datasheet

AD8611/AD8612
Rev. A | Page 3 of 20
SPECIFICATIONS
V+ = 5.0 V, V− = V
GND
= 0 V, T
A
= 25°C, unless otherwise noted.
Table 1.
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage V
OS
1 7 mV
−40°C ≤ T
A
≤ +85°C 8 mV
Offset Voltage Drift ΔV
OS
/ΔT 4 μV/°C
Input Bias Current I
B
V
CM
= 0 V –6 –4 μA
I
B
−40°C ≤ T
A
≤ +85°C –7 –4.5 μA
Input Offset Current I
OS
V
CM
= 0 V ±4 μA
Input Common-Mode Voltage Range V
CM
0.0 3.0 V
Common-Mode Rejection Ratio CMRR 0 V ≤ V
CM
≤ 3.0 V 55 85 dB
Large Signal Voltage Gain A
VO
R
L
= 10 kΩ 3000 V/V
Input Capacitance C
IN
3.0 pF
LATCH ENABLE INPUT
Logic 1 Voltage Threshold V
IH
V
CC
> 4.3 V 2.0 1.65 V
Logic 0 Voltage Threshold V
IL
V
CC
> 4.3 V 1.60 0.8 V
Logic 1 Current I
IH
V
CC
> 4.3 V, V
LH
= 3.0 V –1.0 –0.3 μA
Logic 0 Current I
IL
V
CC
> 4.3 V, V
LL
= 0.3 V –5 –2.7 μA
Latch Enable
Pulse Width t
PW(E)
V
CC
> 4.3 V 3 ns
Setup Time t
S
V
CC
> 4.3 V 0.5 ns
Hold Time t
H
V
CC
> 4.3 V 0.5 ns
DIGITAL OUTPUTS
Logic 1 Voltage V
OH
I
OH
= 50 μA, ΔV
IN
> 250 mV 3.0 3.35 V
Logic 1 Voltage V
OH
I
OH
= 3.2 mA, ΔV
IN
> 250 mV 2.4 3.4 V
Logic 0 Voltage V
OL
I
OL
= 3.2 mA, ΔV
IN
> 250 mV 0.25 0.4 V
DYNAMIC PERFORMANCE
Input Frequency f
MAX
400 mV p-p sine wave 100 MHz
Propagation Delay t
P
200 mV step with 100 mV overdrive
1
4.0 5.5 ns
−40°C ≤ T
A
≤ +85°C 5 ns
Propagation Delay t
P
100 mV step with 5 mV overdrive 5 ns
Differential Propagation Delay
(Rising Propagation Delay vs.
Falling Propagation Delay)
Δt
P
100 mV step with 100 mV overdrive
1
0.5 2.0 ns
Rise Time 20% to 80% 2.5 ns
Fall Time 80% to 20% 1.1 ns
POWER SUPPLY
Power Supply Rejection Ratio PSRR 4.5 V ≤ V+ ≤ 5.5 V 55 73 dB
V+ Supply Current
2
I+ 5.7 10 mA
−40°C ≤ T
A
≤ +85°C 10
Ground Supply Current
2
I
GND
V
O
= 0 V, R
L
= ∞ 3.5 7 mA
−40°C ≤ T
A
≤ +85°C 7 mA
V− Supply Current
2
I− 2.2 4 mA
−40°C ≤ T
A
≤ +85°C 5 mA
1
Guaranteed by design.
2
Per comparator.